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I am getting following error in sharepoint Logs for my SharePoint Visual Studio Sequential workflow having a custom activity.

The custom activity is created through Component Class.

I am not sure why this error is coming? Please help!!!

System.Workflow.Runtime.Hosting.PersistenceException: Type 'System.ComponentModel.Container' in Assembly 'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable. ---> System.Runtime.Serialization.SerializationException: Type 'System.ComponentModel.Container' in Assembly 'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable.     at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type)     at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)     at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()     at System.Runtime.Serialization.Formatters.Binary.WriteObjectInf... 3d93366f-a701-476c-91c9-d2153911486b
03/22/2012 12:38:36.31* w3wp.exe (0x049C)                           0x1620  SharePoint Foundation           Workflow Infrastructure         98d4    Unexpected  ...o.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)     at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)     at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)     at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)     at System.Workflow.ComponentModel.Activity.Save(Stream stream, IFormatter formatter)     at System.Workflow.Runtime.Hosting.WorkflowPersistenceService.GetDefaultSerializedForm(Ac...  3d93366f-a701-476c-91c9-d2153911486b
03/22/2012 12:38:36.31* w3wp.exe (0x049C)                           0x1620  SharePoint Foundation           Workflow Infrastructure         98d4    Unexpected  ...tivity activity)     at Microsoft.SharePoint.Workflow.SPWinOePersistenceService.SaveWorkflowInstanceState(Activity instanceState, Boolean unlock)     at System.Workflow.Runtime.WorkflowExecutor.Persist(Activity dynamicActivity, Boolean unlock, Boolean needsCompensation)     --- End of inner exception stack trace ---     at System.Workflow.Runtime.WorkflowExecutor.Persist(Activity dynamicActivity, Boolean unlock, Boolean needsCompensation)     at System.Workflow.Runtime.WorkflowExecutor.ProtectedPersist(Boolean unlock)  3d93366f-a701-476c-91c9-d2153911486b

Thanks!

Pankaj
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2 Answers2

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The Issue was because when i changed the Component class to Sequential Activity I had Activity properties e.g. 'A' & 'B'. Then i added this activity to VS toolbox. At this stage it was working fine.

Now when I changed the activity code to change its property to 'A' & 'C' and i also removed a Constructor having parameter as 'Container' object.

When i re-compiled this Activity and refresh its DLL. In workflow designer the Activity was not getting refreshed i.e. its toolbox was still pointing to old dll.

To Resolve for this i closes and opened the VS again, VOILA the designer is now getting updated Activity with new properties.

This was i think was limitation of VS toolbox that it is not getting refreshed in-spite of dll for that activity is updated.

Thanks!

Pankaj
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Can you access the source XAML for the workflow? See if a "Container" object is being included, and if it's necessary to have it there. If you can remove it and still have the workflow run properly, this may fix the issue.

Patrick Fletcher
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